One of the first news concerning
Amoso dates from 1077, confirming the existence of the parish of Santa Eulália.
Implanted in a low and marshy place, the Church of the former monastery of Arnoso has a location that is not common in the Portuguese Romanesque and that could have been one of the causes of the reduction of the
its constructive program.
Although it is not possible to confirm its place of origin, the date of 1156 is inscribed on the tympanum of the south portal. Another epigraph, now detached, was removed during the restoration work carried out by the DGEMN from the outer face of the north wall. of the nave, next to the first buttress. Its original position seems to confirm the date of one of the phases of the Romanesque construction: | 124.
The walls of the most eastern portion of the nave are lined with blind arcades, as they were initially intended for the transept, indicating a program designed for the construction of a temple on a larger scale.
At the head, the figurative sculpture stands out, whose meaning seems to be that of struggle, tension and threat, pointing to the presence of evil forces and to the permanent struggle between man and evil entities.